Round|Natural|GIA

1.00ct E SI1 Round Natural Diamond

VG • E/SI1 • GIA 6552427355

Certificate GIA 6552427355

Diamond specifications and retailer prices

From $2,181 USD
As of November 5, 2026
Save $2,802 USD (56%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $5,301 USD at NZ Jewellers · As of October 6, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6552427355. Listed at 23 retailers as of November 4, 2026, with a 128% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 6552427355
Dimensions6.17 × 6.23 × 3.99 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.17 mm6.23 mm1.00 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552427355
Side View
Table 58.0%Crown 38.5°Girdle: STK-THKPavilion 40°Culet: NDepth 64.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $3,144 USD|Low: $2,181 USD|High: $5,149 USD|Avg: $3,013 USD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 8$2,181 USD
Retailer 16$2,265 USD
Retailer 2$2,424 USD
Retailer 9$2,456 USD
Retailer 5$2,489 USD
Retailer 3$2,499 USD
Retailer 19$2,509 USD
Retailer 18$2,665 USD
Retailer 13$2,857 USD
Retailer 4$3,090 USD
Retailer 7$3,090 USD
Retailer 1$3,144 USD
Retailer 17$3,190 USD
Retailer 10$3,250 USD
Retailer 12$3,272 USD
Retailer 11$3,532 USD
Retailer 14$3,647 USD
Retailer 6$3,659 USD
Retailer 15$4,983 USD

24 data points across 19 retailers

23 retailers$2,181 USD to $4,983 USD

A
Cheapest Retailer
-
$2,181 USD
A
Retailer 2
-
$2,265 USD
View
A
Retailer 3
-
$2,424 USD
View
A
Retailer 4
-
$2,489 USD
View
B+
Retailer 5
-
$2,499 USD
View
Final sale: no returns
A
Retailer 6
-
$2,509 USD
View
A
Retailer 7
-
$2,665 USD
View
Retailer 8
-
$2,756 USD
View
Price last confirmed 28 days ago
Retailer 9
-
$2,756 USD
View
Price last confirmed 25 days ago
A
Retailer 10
-
$2,857 USD
View
Retailer 11
-
$2,927 USD
View
Price last confirmed 38 days ago
B+
Retailer 12
-
$3,090 USD
View
B+
Retailer 13
-
$3,090 USD
View
B+
Retailer 14
-
$3,144 USD
View
Retailer 15
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$3,181 USD
View
Price last confirmed 28 days ago
B+
Retailer 16
-
$3,190 USD
View
Retailer 17
-
$3,250 USD
View
Price last confirmed 30 days ago
B+
Retailer 18
-
$3,272 USD
View
Retailer 19
-
$3,532 USD
View
Price last confirmed 14 days ago
B+
Retailer 20
-
$3,647 USD
View
B+
Retailer 21
-
$3,659 USD
View
B
Retailer 22
-
$4,983 USD
View
Most Expensive
NZ Jewellers
f2188a06-b75c-43bc-9425-fcedfc2a0820 · Oct 6
$5,301 USD
View
Price last confirmed 31 days ago
22 more retailers have this diamond
Prices start from $2,181 USDSave up to $2,802 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.00ct Round
$2,181 USD